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Zarrin [17]
3 years ago
14

Plz help me with these 2 problems I really need it and I need to know how you to the answer so I can show my work

Mathematics
1 answer:
ELEN [110]3 years ago
7 0

Answer:

13.) 0.19625    15.) 37.68

Step-by-step explanation:

Formula for area of a circle: A=πr²

13.) 3.14 x .25² = 0.19625

Formula for circumference for a circle: C=πD  or C=2πr

15.) (6 x 2) x 3.14 = 37.68

Hope this helped :  )

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A car rental company charges rs 500 a day
Montano1993 [528]

Answer:

total bill=1644

let he drives x kilometer

then

500*2+8*x=1644

1000+8x=1644

8x= 1644-1000

8x= 644

x= 644/8=80.5 km

Step-by-step explanation:

8 0
3 years ago
Differentiate y= ln (6 – 3x)^4​
dsp73

Step-by-step explanation:

\frac{dy}{dx}  =  \frac{1}{ {(6 - 3x)}^{4} }  \times  {4(6 - 3x)}^{3} ( - 3) \\  =   \frac{ - 12 {(6 - 3x)}^{3} }{ {(6 - 3x)}^{4} }   \\  =  -  \frac{12}{6 - 3x}

I hope I'm correct. I've never learnt differentiation for log and exponents before

3 0
3 years ago
Solve system of equations:<br> 4l + 8m = 40<br> 5l + 2m = 28<br> Please show steps!
ziro4ka [17]
Answer:

l = 9/2 or 4.5

m = 11/4 or 2.75

Step-by-step explanation:

4l + 8m = 40

8m = 40 - 4I

m = 5 - 0.5l

5l + 2m = 28

5l + 2(5 - 0.5l) = 28

5l + (10 - l) = 28

4l + 10 = 28

4l = 18

l = 18/4 or 9/2

l = 4.5

4l + 8m = 40

4(4.5) + 8m = 40

18 + 8m = 40

8m + 18 = 40

8m = 22

m = 22/8

m = 2.75

3 0
3 years ago
What is the radius in centimeters of a circle that has a circumference of 16 centimeters
Whitepunk [10]
If I did this correctly all you hade to do is work in reverse. 
1.) Divide 16 by pi (3.14) To get the diameter.16/ 3.14 =5.095541401 or 5.1
2.) Since Diameter is just the radius doubled divide 5.1 by 2. 5.1 /2 = 2.55
3.) Plug it in, use the 2pir equation to see if it works.  2X3.14X2.55= 16.014 or 16.
                     I hope this helps, let me know if you need further explanation.
3 0
3 years ago
Customers at the Palace Pro Shop receive a 10% discount if they are members. All customers must pay 7% in sales tax. The functio
Andreas93 [3]

Answer:

0.963

Step-by-step explanation:

It’s correct

4 0
3 years ago
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